公开(公告)号：DE3276361D1

公开(公告)日：1987-06-25

申请号：DE3276361

申请日：1982-08-13

Applicant: IBM

Inventor： BOYANOWSKI ROBERT EDWARD ,  GREGORY FLOYD ARTHUR ,  NEMIER STANLEY EDWIN

IPC: B65H16/02 ,  B41J15/16 ,  B65H23/16

Abstract: Apparatus for incremental feeding of a paper web (10) from an arborless supply roll (11) over a transverse dancer bar (14) resiliently supported at each end with the respective supports (15, 16) having different and variable spring rates to effect uneven pulling of the web (10) during feeding and thus jogging of the supply roll (11). This action maintains a tight wrap of the outer layers of web (10) on the roll (11) and aids in maintaining web alignment during feeding.